^
THIS is exactly the point... there's absolutely NO WAY to answer precisely a question regarding dosage... it's SOOOOO individual, both in terms of results and sides.
Just like Pesty, in 20+ years in that endeavour, I've seen it all... guys with extraordinary physiques taking MASSIVE doses (3+g easy & tons of whatever they could afford/get their hands on), others of about the same level genuinely scared to pin and just tired at the idea of injecting one ridiculous ampoule of sust a week... really, THERE'S NO RULE, please understand it...
Basic thinking: provided you're at the top of your game on every other damn point (nutrition, training, recovery, etc...), the less you can grow on, the better... less money spent, less chances taken with your health. When you stop making progresses, increase SLIGHTLY, never forgetting to also adjust your overall kcal intake to your new size... most guys just up their gear when a few hundreds kcals (and more protein) would do exactly the same, if not more. I see many smile here... it remains the truth anyways.
Also, at some point, when you're already on 2+g, just adding more AAS won't have any magic... using smartly slin, GH and possibly IGF if you can find pharm grade one on the other hand will.
Last, I'm not one who's gonna tell you it's stupid to use "high" doses and that nobody at the highest level does... cause it's simply not the truth, quite the opposite actually... the key is to find YOUR optimal dose, the one that will help you keep making gains while not suffering too much from the EXTREME sides that can possibly happen... some people will feel like Gods when they blast, but for most the lethargy is just unbearable, not to mention the shitty mood, agressiveness and unpleasant heart racing feeling... among a long list.
Nothing is set in stone in this sport, up to everyone to find what works for him... and at which cost.